White House spokesman Jay Carney on Tuesday lambasted the House bill, saying it permits insurers to continue to provide low-quality coverage to new consumers and those with existing plans.

The end result, the White House argues, is that the plans that meet ObamaCare’s basic requirements would compete against those that don’t, sabotaging the administration’s reasoning behind having minimum requirements.

The Upton legislation doesn’t go as far as a Senate bill that vulnerable red state Democrats have begun backing.

That bill, proposed by Sens. Mary Landrieu (D-La.) and Joe Manchin (D-W.Va.), would require companies to continue to offer plans that were offered before the new ObamaCare rules took effect for as long as consumers continue to pay their premiums.

Carney dodged a question about the White House stance on the Landrieu-Manchin bill Tuesday. Later in the day, Sen. Dianne Feinstein (D-Calif.) announced her support for it.

A handful of healthcare policy experts interviewed by The Hill on Tuesday said both bills would be administrative nightmares and are complete overhauls that would take months to implement.